4539641 has 4 divisors (see below), whose sum is σ = 4662372. Its totient is φ = 4416912.

The previous prime is 4539617. The next prime is 4539649. The reversal of 4539641 is 1469354.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1700416 + 2839225 = 1304^2 + 1685^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4539641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4539598 and 4539607.

It is not an unprimeable number, because it can be changed into a prime (4539649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61310 + ... + 61383.

It is an arithmetic number, because the mean of its divisors is an integer number (1165593).

Almost surely, 2^4539641 is an apocalyptic number.

It is an amenable number.

4539641 is a deficient number, since it is larger than the sum of its proper divisors (122731).

4539641 is a wasteful number, since it uses less digits than its factorization.

4539641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122730.

The product of its digits is 12960, while the sum is 32.

The square root of 4539641 is about 2130.6433300766. The cubic root of 4539641 is about 165.5797299320.

The spelling of 4539641 in words is "four million, five hundred thirty-nine thousand, six hundred forty-one".